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Complex I binding by a virally encoded RNA regulates mitochondria-induced cell death

Reeves, Matthew B., Davies, Andrew A., McSharry, Brian Patrick, Wilkinson, Gavin William Grahame and Sinclair, John H. 2007. Complex I binding by a virally encoded RNA regulates mitochondria-induced cell death. Science 316 (5829) , pp. 1345-1348. 10.1126/science.1142984

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Abstract

Human cytomegalovirus infection perturbs multiple cellular processes that could promote the release of proapoptotic stimuli. Consequently, it encodes mechanisms to prevent cell death during infection. Using rotenone, a potent inhibitor of the mitochondrial enzyme complex I (reduced nicotinamide adenine dinucleotide–ubiquinone oxido-reductase), we found that human cytomegalovirus infection protected cells from rotenone-induced apoptosis, a protection mediated by a 2.7-kilobase virally encoded RNA (ß2.7). During infection, ß2.7 RNA interacted with complex I and prevented the relocalization of the essential subunit genes associated with retinoid/interferon–induced mortality–19, in response to apoptotic stimuli. This interaction, which is important for stabilizing the mitochondrial membrane potential, resulted in continued adenosine triphosphate production, which is critical for the successful completion of the virus' life cycle. Complex I targeting by a viral RNA represents a refined strategy to modulate the metabolic viability of the infected host cell.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Systems Immunity Research Institute (SIURI)
Neuroscience and Mental Health Research Institute (NMHRI)
Publisher: American Association for the Advancement of Science
ISSN: 1095-9203
Last Modified: 04 Jun 2017 01:31
URI: http://orca.cf.ac.uk/id/eprint/315

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